Products Description
The E+H Deltabar PMD78B is the world's first ceramic capacitive differential pressure transmitter with integrated Ethernet-APL functionality. Featuring the innovative PlanarTEC™ ceramic sensor technology, it is designed for critical process measurement in next-generation digital plants. Building upon the Deltabar series' legacy of exceptional measurement performance and superior reliability, it introduces native Ethernet-APL connectivity to become a core measurement node for plant digitalization and intelligence. It delivers a future-proof, high-performance solution for process industries like chemicals, oil & gas, and power.
Core Technical Features
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Feature |
Details |
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Native Ethernet-APL Technology |
• Industry first with built-in 2-port switch supporting native Ethernet-APL (10BASE-T1L Single Pair Ethernet) communication. • Enables end-to-end digitalization from field device to control room, with 10 Mbps data rate (100x bandwidth increase). • Enables seamless integration into IIoT and Industry 4.0 architectures. |
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PlanarTEC™ Ceramic Sensor |
• Monolithic ceramic diaphragm with no fill fluid or mechanical linkages, eliminating hysteresis and drift at the source. • Ultra-smooth, inert surface offers superior corrosion resistance for direct measurement of aggressive acids, caustics, slurries, etc. • Exceptionally high bidirectional overpressure resistance (up to 40 MPa) with no dead zone. |
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Ultimate Accuracy & Long-term Stability |
• Measurement accuracy up to ±0.05%, meeting the highest standards for custody transfer and process control. • Industry-leading long-term stability with minimal annual drift, enabling calibration intervals extendable beyond 15 years, drastically reducing TCO. |
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Comprehensive Heartbeat Technology |
• Integrated Sensor In-situ Test (SIT) verifies sensor integrity and accuracy online without process interruption, supporting SIL functional safety. • Provides continuous predictive maintenance data and clear device health status (NAMUR NE107 compliant). |
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Advanced Integrated Diagnostics |
• Monitors not only the device but also process conditions (e.g., clogging, cavitation, pulsation) with diagnostic advice. • Supports remote configuration, monitoring, and high-volume data transfer (e.g., waveform data) via Ethernet-APL. |
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Highest Safety & Certification Levels |
• Certified for SIL 2/3 applications in safety instrumented systems. • Premium wetted part options (Tantalum, Hastelloy, Platinum-coated ceramic). • Comprehensive explosion-proof (ATEX, IECEx, FM, CSA) and high-pressure certifications. |
Industry Application Advantages
1. Pioneering Plant Digitalization:
· Eliminates System Bottlenecks: Ethernet-APL's high bandwidth overcomes data throughput limits of traditional fieldbuses, enabling real-time, parallel transmission of vast amounts of process, diagnostic, and device data.
· Simplifies Network Architecture: Enables IT/OT convergence from sensor to cloud using unified Ethernet protocol, reducing gateways and interfaces, lowering system complexity.
· Enables Advanced Applications: Provides rich, timely data for data-driven Advanced Process Control (APC), digital twins, and AI analytics.
2. Sets the Gold Standard for Process Measurement:
· Unmatched Reliability: "Wear-free" ceramic technology and Heartbeat diagnostics make it the most trusted measurement for safety-critical applications and long-run facilities.
· Lowest Lifecycle Cost: Ultra-long calibration intervals and predictive maintenance capabilities minimize operational expenditure (OPEX).
3. Future-Ready Adaptability:
· Capable of handling more complex and demanding media and process conditions in future plants.
· Provides a future-proof technological foundation for continuous plant upgrades and expansions, protecting long-term investment.
Suitable Application Scenarios
The PMD78B is designed for flagship applications that are undergoing or planning digital transformation and have the highest demands for measurement performance, reliability, and data depth.
1. Large-scale Petrochemical & Chemical Complexes
· Applications: Critical differential pressure and level measurements in ethylene crackers, large CCR units, polyolefin reactors.
· Value: High accuracy ensures process optimization and safety; Ethernet-APL enables efficient integration and big data management for tens of thousands of instruments.
2. Green Energy & Emerging Chemicals
· Applications: Pressure and dP measurement across the hydrogen value chain (electrolyzers, storage, refueling); Carbon Capture and Storage (CCS) plants; reactor control in battery material production.
· Value: Provides top-tier measurement instruments with built-in digital capability for emerging processes from the start, supporting R&D and optimization.
3. Smart Power Plants & Energy Management
· Applications: High-accuracy measurement of boiler drum level, steam flow in ultra-supercritical units; key data source for plant-wide performance calculation and optimization (PI systems).
· Value: Measurement data directly feeds into plant-wide information networks, providing real-time high-fidelity data for smart generation and load optimization.
4. Offshore Platforms & FLNG
· Applications: Multi-interface measurement in separators; critical cryogenic dP monitoring in liquefaction processes; pressure protection in Safety Instrumented Systems (SIS).
· Value: Exceptional reliability reduces maintenance needs in remote locations; digital architecture simplifies complex offshore control systems.
5. Life Sciences & Advanced Materials
· Applications: Aseptic and precise control of large-scale bioreactors; ultra-pure pressure monitoring in semiconductor specialty gas delivery.
· Value: Delivers data integrity and traceability compliant with stringent regulations (e.g., FDA 21 CFR Part 11).
Key Technical Specifications Summary
· Accuracy: Up to ±0.05%
· Long-term Stability: Better than ±0.1% URL / 15 years
· Communication: Native dual-port Ethernet-APL, plus support for 4…20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus (via communication card)
· Overpressure Limit: Up to 40 MPa
· Process Temperature: -70…+200 °C (up to 400°C with cooling element)
· Power Supply: Power over Data Line (PoDL) via Ethernet-APL or separate supply
· Safety Certification: SIL 2/3, multiple explosion-proof certifications
· Wetted Materials: Ceramic, Tantalum, Hastelloy C276, Platinum coating, etc.
Keywords
1. E+H Deltabar PMD78B
2. Ethernet-APL Differential Pressure Transmitter
3. Digital Field Device
4. Single Pair Ethernet Process Instrument
5. Industrial IoT (IIoT) Transmitter
6. PlanarTEC™ Ceramic Sensor
7. High-Accuracy DP Measurement
8. Core Instrument for Plant Digitalization
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